Door lock and latch.



No. 817,713. PATENTED APR. 10, 1906. W. H. HOPE.

DOOR LOOK AND LATCH.

APPLIGATIOH rum) mm. 18. 1904.

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No. 817,713. PATENTED APR. 10, 1906.

W. H. HOPE.

. 909R LOCK AND LATCH.

APPLIULTIOH FILED P211318. hi.

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UNITED STAQES PATENT OFFICF- WILLIAM H. HOPE, OF PROVIDENCE, RHODEISLAND.

oqos LOCK AND LATCH.

To (all ,whom it may concern.-

Be it known that I, VVILL liM I-I. Horn, a citizen of the United States,residin at Providence, in the State of Rhode Islam have in- 5 vented anew and useful Improvement in Door Locks and-Latches, of which thefollowing is a specification.

The nature of my invention consists in the improved construction andarrangement of 10 the parts of the lock and latch, whereby it is madeadapted for ready attachment to doors 1 of different thicknesses, and inthe improved construction of the lock mechanism of the i knob, ashereinafter fully set forth. l5 In-the accompanying drawings, Figure 1represents the outer sidexview of a portion of a door to which myimp'rovedlock and latch is attached. Fig. 2 represents the edgewiew ofthe door, showing the end of the hitchbolt. Fig. 3 represents ahorizontal section taken on the line 3 3of Fig. 2. Fig. fiJfBPIB- sentsa horizontal section of the siotted lockingtube of the outer knob. Fig.5 reprecents an end view of the key-receiving case removed from theknob, showing the form of the keyhole. Fig. 6 represents aside view ofthe same. Fig. 7 represents a section taken on the line 7 7 of Fi 6.Fig. 8 represents an enlar ed section ta on on the'line 8 8 of Fig. 0 2.ig; 9 represents an enlarged detail section ta on on the line 9 9 ofFig. 1. Fig. 10 represents a detail section, as in Fi 3 but showing theposition of the parts of t e latch mechanism when the inner and outerknobs 5 are locked together for simultaneous movements: Fig. 11 reresents a section taken on the line 11 11 of *i 3. Fig. 12 represents asection taken on t e line 12 12 of Fig. 3. Fig. 13 re esents a sectiontaken on the iine 4o 13 13 of i 3. Fig. 14 re resents an end view of theEey for the lock 0 the outer knoh.

In the drawin s, A represents a portion of the stiie of the cor, towhich the lock and latch is attached.

4 5 B to resents the latch-holding tube, and C the sli in latch-boltheld within the tube; .7

The sife plates D D of the lock and latch are secured to each otherby'means of the screws E E, as shown in Fig. 1 and in the detail sectionFig. 9, and the inner knob F is provided with an opening G of squarecrosssection and with the screw-attached coilar H. which is held in thecircular recess I of the Specification of Letters Patent.

x Application filed F bruary 18,1904. Serial. Ne. 194,237.

Patented April 10, 1906.

late D, and between the inner end of the mob F and the side of the stile.of the doo 5 5 is placed the loose washer K. 'llhe' inneren portion aof the spindle L is squ'hred t'ojit oosely within the squared opening Gof the knob F, and the lower side of the spindle L is provided with thearm M, which enters the so slot-openirw b 01" the sliding latchholt C,as shown in i s. 8 and 9. The outer end of the spindle is provided withthe flattened projection c, which en'tters the notch c' in the inner endof the sliding locking-piece N the said locking-piece being heid torsliding movement within the horde! the locking-tube O. The tube 0 isprovided with the flange d, which is screw-attached to the inner end ofthe outer knob F and also provided at its outer end with the angularhook-formed slotopening e. The sliding locking-piece N is provided atits outer end with an annular flange which is adapted for movement backand forth within the limitin -space g 5 between the outer end of thetubei) and the inner end of the keg-receiving case P, the saidlockingiece be n also provided with the uidingin k, which is held in theangular s ot-opening e of the tube 0 and actuated in the outwarddirection by means of the spiral spring Q. The key-receiving case I ismade in two parts 'i and j, which when pieced together and held withinthe bore of the knob F will form the key-receiving chamber is and 8 5also form the keyhole Z. The key R is provided with the notches m m,adapted to receive pins n, which project inward from the peripheral wall0 of the chamber is, and also provided with the offset ii p, projectingforgo ward from one side of the key R, as shown in Figs. it) and 14, andthe inner end of the case F is provided with an o ening which is oilsetfrom the side of thee washer and throu h which the projecting ii ppasses when the key is roperly inserte into the chamber 7:.

The key is to be inserted into the chamber it when the keyhole is in thevertical position shown in Fig. 1 and then turned to a hori- 'zontalposition past the pins 11., which pass through the notches m m of thekey, as shown iii Fi 9 and 10. Then by pushin forward on his key theprojecting lip p wi ass throu h the opening (1 and serve to force ackthe s iding locking-piece N against the reverse action of the spring Q,and by this means the flattened projection c of the spinle L will becaused to engage with the notch of the sliding locking-piece N, as shownin 10, and then upon turning the knob F the uidin -pin it will be causedto strike the side 'fiiof t e slot-opening e, and then upon withdrawingthe key R the pin it will be forced b the action of the spring Q back tothe end .9 the hook-formed slot 6, with the flattened rojection c of thespindle L and the note 0' of the sliding locking-piece N still inengagement, and then the movement of either of the knobs F F will serveto withdraw theilatch-bolt O to open the door. Now in order to preventthe withdrawal of the latch ebolt by means of the outer knob F the keyis to be again inserted and the sliding locking-piece forced back asbefore to its extreme limit of movement and the knob F then turned inthe reverse direction, so as to bring the guiding-pin it back to theportion t of the slot-opening e, and then upon drawing back the ke R thenotch c of the sliding locking-piece I\ will be carried back out ofengagement with the flattened projection c of the 'spindle L, and thenthe outer knob F may be; turned without acting upon the latch mechanismto withdraw the bolt, and entrance fram the outer side of the door willbe prevented:

I claimias my invention 1. Ina lock or latch, the combination of theslidin spring-actuted latch-bolt, the holding-tn e for the latch-bolt,the bolt-actuating spindle squared at its inner end and provided at itsouter end with means for clutch engagement, and also provided with anarm for operating the latch-bolt, the inner knob rovided with a centralopening ad apted to oosely receive the bolt-actuating spindle, therecessed inner plate of the lock, the collar attached to the inner knoband held 'in the said recess of the inner plate, the rein tube, the saidlockin -piecebeing'p1=dvi ed at its inner end wit means for clutchengagement with the outer end of the boltactuating spindle, and with aguiding-pin ada ted to traverse the angular s ot-openin f the saidlocking-tube and hold the sai sliding locking-piece in itsclutchengagement with the end of the bolt-actuating spindle, and thespring arranged between the abutting ends of the lockingiece -i thebolt-actuating spindle, and a a ted carry the said locking-piece outwarto egagement with the end of the hook-formed slot-o ening of thelocking-tube. J

2. n a lock or latch, the combination "of the latch-actuating s indleprovided at fits outer end with means or clutch enga ement, the recessedouter plate of the lock, t elocking-tube provided at its outer end withan angular hook-formed slot-opening, and at its inner end with aperipheral flange loosely held within the recess of the said outer late,the outer knob secured to the said 100 ingtube, the key-receivin caseheld in the outer end of the outer kno the slidin lockingpiece held inthe chamber forme between the inner end of the key-receivinggcase andthe outer end of the bolt-actuating spindle within the bore of thelocking-tube,-the said locking-piece being provided at its inner endwith means for clutch engagement with the end'of the bolt-actuatingspindle and with a guiding-pin adapted to traverse the angularslot-opening of the locking-itube, and

hold the said locking-piece in its clutch engagement with thebolt-actuating spindle, and the spring held in the bore of thelockingtube between the end of the lockingiece and the end of thebolt-actuating spind e.

3. In a lock or latch, the combmation of the latch-actuating spindleprovided at its outer end with means for-clutch enga ement, the recessedouter plate of the lock, t e locking-tube provided at its outer end withan angular hook-formed slot-opening, and at its inner end with aperipheral flange loosely held within the recess of the said outer late,the outer knob secured to the said 100 gtube, the key-receiving case,made in two segmental parts in the outer end of the said knob, one ofthe said segments bein provided with guard-pins, and also wit the openinto receive the forwardly-projecting lip of tie key, the slidinglocking-piece hel in the chamber formed between the inner end of the ke-receiving case and the outer end of the bolt-actuating spindle withinthe bore of the locking-tube, the sa d lockin piece being provided atits inner end wit means for clutch engagement with the end of thebolt-actuating spindle, and with a guiding-pin adapted to traverse theangular slot-openin of the locking-tube, ,and hold the said 100ing-piecejnahltoh engagement with the boltactiiating s indle, and thespring held in the bore of t e locking-tube between the abutting ends ofthe lockingpiece and the said bolt-actuating spindle.

4. In a lock or latch, the combination of the locking-tube provided withthe angular hook-formed slot-opening at its outer end, the outer knobattached to the said lockingtube, and the sliding lockin iece providedto receive the offset forwardly-proje etin lip with a guiding-pinadapted to traverse the of a key, by means of which the sqid sli ling 10said slot-opening of the looking-tube, with lockingpie0e is forcedforward int locking the key having a projecting lip, thekey-reengagement.

5 ceiving case made in two segmental parts WM. H. HOPE.

and held in the end of the knob, one of the Witnesses: segments beingprovided with the guard-pins SOCRATES SGHOLFIELD,

o the key and also with the offset opening GEO. C. CAMPBELL.

